Dockerfile

# Multi-stage build for optimized image
FROM python:3.11-slim as builder

WORKDIR /tmp

# Install build dependencies
RUN apt-get update && apt-get install -y --no-install-recommends \
    build-essential \
    && rm -rf /var/lib/apt/lists/*

# Copy requirements and install Python dependencies
COPY requirements.txt .
RUN pip install --user --no-cache-dir -r requirements.txt

# Final stage
FROM python:3.11-slim

WORKDIR /app

# Install runtime dependencies only
RUN apt-get update && apt-get install -y --no-install-recommends \
    libgomp1 \
    && rm -rf /var/lib/apt/lists/*

# Copy Python dependencies from builder
COPY --from=builder /root/.local /root/.local

# Copy application code
COPY . .

# Set environment variables
ENV PATH=/root/.local/bin:$PATH \
    PYTHONUNBUFFERED=1 \
    PYTHONDONTWRITEBYTECODE=1

# Expose port (Cloud Run uses 8080 by default, but we configure it)
EXPOSE 8080

# Health check
#HEALTHCHECK --interval=30s --timeout=10s --start-period=40s --retries=3 \
#    CMD python -c "import urllib.request; urllib.request.urlopen('http://localhost:8080/health').read()"

# Run the application
CMD ["sh", "-c", "uvicorn main:app --host 0.0.0.0 --port ${PORT:-8080}"]